Amorphous Nickel Phosphorus Alloys for Oil and Gas

Abstract

There is disclosed a system and method for applying an amorphous NiP alloy coating on pipes and rods, particularly for use in the oil and gas industries to inhibit corrosion, In an embodiment, the method comprises applying an amorphous nickel phosphorus or NiP alloy coating to pipes and rods for use in oil and gas industries, comprising; preparing a Watt's type nickel phosphorus (NiP) plating bath solution utilizing a Watt's type nickel electrolyte containing hypophosphorous acid; maintaining the plating bath solution temperature at between 120° F. and 170° F. adjusted to regulate phosphorus content over 11%; regulating a pH level of the plating bath solution between 1.0 and 3.0 utilizing sulphuric acid; and controlling the cathode current density in the range of 10-100 amps/sq/ft. Significant cost savings may be realized by using an electroplated nickel-phosphorus alloy over regular carbon steel alloy components at sufficient thickness to be pore free replacing the use of more expensive components made of stainless steels or nickel base alloys.

Dependencies are inferred from the claim text.